#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 10
#define DHTTYPE DHT22
#define LED_M 3
#define LED_K 4
#define LED_H 5
DHT dht(DHTPIN, DHT22);

LiquidCrystal_I2C lcd(0x27, 16, 2);
int chk;
float hum;
float temp;

void setup() {
Serial.begin(9600);
dht.begin();

pinMode(LED_M, OUTPUT); //LED MERAH
pinMode(LED_K, OUTPUT); //LED KUNING
pinMode(LED_H, OUTPUT); //LED Hijau
}

void loop() {
hum = dht.readHumidity();
  temp = dht.readTemperature();
    lcd.init();
    lcd.backlight();
    //SUHU
    lcd.setCursor(0,0);
    lcd.print("Suhu  :");
    lcd.setCursor(7,0);
    lcd.print(temp);
    lcd.setCursor(13,0);
    lcd.print("C");

    //Kelembaban
    lcd.setCursor(0,1);
    lcd.print("lembab:");
    lcd.setCursor(7,1);
    lcd.print(hum);
    lcd.setCursor(13,1);
    lcd.print("%");

 if (temp > 30) {
    // Suhu tinggi,LED merah menyala
    digitalWrite(LED_M, HIGH);
    digitalWrite(LED_K, LOW);
    digitalWrite(LED_H, LOW);
  } else if (temp > 20) {
    // Suhu sedang,LED kuning menyala
    digitalWrite(LED_M, LOW);
    digitalWrite(LED_K, HIGH);
    digitalWrite(LED_H, LOW);
  } else {
    // Suhu rendah,LED hijau menyala
    digitalWrite(LED_M, LOW);
    digitalWrite(LED_K, LOW);
    digitalWrite(LED_H, HIGH);
  }
}